One of the latest studies reconstructing Dunkleosteus explicitly left out the lip question. But this isso very likely.

#fossilfish #dunkleosteus #Devonian #Paleozoico #placoderm #arthrodira #armoredfish #underthesea #artandscience

Psarolepis - yes, another sketch - right after lobe-finned fish were invented around the late Silurian, so somehow representative for a certain stage of our ancestry

#fish #fossilfish #coelacanth #sarcopterygii #evolution #Paleozoic #Silurian #Devonian